Comparable mono and bipolar connection of capacitive deionization stack in NaCl treatment

Jae Kwang Lee; Ye Eun Kim; Jongwon Kim; Sangho Chung; Dukjin Ji; Jaeyoung Lee

Journal of Industrial and Engineering Chemistry, Vol.18, No.2, 763-766, March, 2012

DOI10.1016/j.jiec.2011.11.119 Export Citation

Comparable mono and bipolar connection of capacitive deionization stack in NaCl treatment

Jae Kwang Lee^{1, 2}, Ye Eun Kim², Jongwon Kim¹, Sangho Chung¹, Dukjin Ji³, and Jaeyoung Lee^{1, 2, †}

¹Electrochemical Reaction and Technology Laboratory (ERTL), School of Environmental Science and Engineering, Gwangju 500-712, South Korea
²Ertl Center for Electrochemistry and Catalysis, Gwangju Institute of Science and Technology, Gwangju 500-712, South Korea
³DONG-A HWA SUNG CO., LTD., Gimhae-City, Gyungnam 621-834, South Korea

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In this study, multiple cells of capacitive deionization (CDI) stack were designed in mono-polar and bipolar for a comparison study regarding voltage distribution. The repetitive sorption and regeneration process are conducted to investigate the recycling behavior. Higher removal efficiency is obtained and carbon electrodes are slowly saturated by ions from the CDI stack connected in mono-polar than that in bipolar. Durability of CDI was demonstrated in both bi- and mono-polar systems. Finally, optimized condition of the cell structure and operation design for efficient removal of ions and energy saving are extensively introduced.

Keywords:Capacitive deionization;Mono-polar and bipolar connection;Recycling;Carbon electrodes;Flow rate

[References]

World Water Assessment Programme, Water for People, Water for Life: A Joint Report by the Twenty Three UN Agencies Concerned with Freshwater, Berghahn Books, UNESCO Pub., NY, USA, 576 (2003)
Parry ML, Canziani OF, Palutikof JP, van der Linden PJ, Hanson CE, Climate Change: Impacts Adaptation and Vulnerability: Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, UK/NY, USA, 976 (2007)
Escobar IC, Scha¨ fer AI, Sustainable Water for the Future: Water Recycling Versus Desalination, Elsevier, London, UK, 416 (2010)
Anderson MA, Cudero AL, Palma J, Electrochim. Acta, 55(12), 3845 (2010)
Oren Y, Desalination, 228(1-3), 10 (2008)
Pekala RW, Farmer JC, Alviso CT, Tran TD, Mayer ST, Miller JM, Dunn B, J.Non-Cryst. Solids., 225, 74 (1998)
Zhang DS, Shi LY, Fang JH, Dai K, Li XK, Mater. Chem. Phys., 97(2-3), 415 (2006)
Seo SJ, Jeon H, Lee JK, Kim GY, Park D, Nojima H, Lee J, Moon SH, Water Res., 44, 2267 (2010)

[Related Articles]

[1] World Water Assessment Programme, Water for People, Water for Life: A Joint Report by the Twenty Three UN Agencies Concerned with Freshwater, Berghahn Books, UNESCO Pub., NY, USA, 576 (2003)

[2] Parry ML, Canziani OF, Palutikof JP, van der Linden PJ, Hanson CE, Climate Change: Impacts Adaptation and Vulnerability: Contribution of Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, UK/NY, USA, 976 (2007)

[3] Escobar IC, Scha¨ fer AI, Sustainable Water for the Future: Water Recycling Versus Desalination, Elsevier, London, UK, 416 (2010)

[4] Anderson MA, Cudero AL, Palma J, Electrochim. Acta, 55(12), 3845 (2010)

[5] Oren Y, Desalination, 228(1-3), 10 (2008)

[6] Pekala RW, Farmer JC, Alviso CT, Tran TD, Mayer ST, Miller JM, Dunn B, J.Non-Cryst. Solids., 225, 74 (1998)

[7] Zhang DS, Shi LY, Fang JH, Dai K, Li XK, Mater. Chem. Phys., 97(2-3), 415 (2006)

[8] Seo SJ, Jeon H, Lee JK, Kim GY, Park D, Nojima H, Lee J, Moon SH, Water Res., 44, 2267 (2010)